﻿// ===================================
// <copyright>LogoUI Co.</copyright>
// <author>Vlad Spivak</author>
// <email>mailto:vlads@logoui.co.il</email>
// <created>20/00/10</created>
// <lastedit>Saturday, November 20, 2010</lastedit>

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
//
// <remarks>Part of this software based on various internet sources, mostly on the works
// of members of Wpf Disciples group http://wpfdisciples.wordpress.com/
// Also project may contain code from works of Nito and OpenLight group</remarks>
// ====================================================================================//


using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;

namespace Internal
{
  /// <summary>
  /// Converts boolean to constant value
  /// </summary>
  public class BoolToConstConverter:IValueConverter
  {
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
      object parameterTrue = parameter;
      object parameterFalse = DependencyProperty.UnsetValue;
      if(parameter is String)
      {
        string[] elements = ((string) parameter).Split('|');
        parameterTrue = elements[0];
        if(elements.Length>1)
        {
          parameterFalse = elements[1];
        }

      }
      if (value is bool)
      {
        return (bool) value ? parameterTrue : parameterFalse;
      }
      if (value is string)
      {
        bool res;
        if (Boolean.TryParse((string) value, out res) && res)
        {
          return parameterTrue;
        }
      }
      return parameterFalse;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
      return value;
    }
  }
}
